Detailed Refractor Imaging with the RCS

Derecke Palmer

doi:10.1081/22020586.2010.12041864

ISSN: 2202-0586
E-ISSN:

oa Detailed Refractor Imaging with the RCS
Authors Derecke Palmer^a
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^a The University of New South Wales Sydney, 2052, Australia, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2010, Issue ASEG2010 - 21st Geophysical Conference, Dec 2010, p. 1 - 4
DOI: https://doi.org/10.1081/22020586.2010.12041864
- Published online: 01 Dec 2010

Abstract

Summary

The most important factor for obtaining an accurate depth model of the weathering is an accurate time model. The computation of a GRM time model with scalar traveltimes is readily extended to the generation of the refraction convolution section (RCS) with the convolution of pairs of forward and reverse traces.

Stacking with the RCS facilitates the recognition of genuine later events, in addition to the first arrivals. Dipping events within the sub-weathering can be recognized in the stacked and deconvolved RCS, and they are enhanced with the application of statics corrections to the RCS. These events can also be recognized in common offset refraction (COR) and coincident reflection sections.

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2026-01-20

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References

de Franco, R., 2005, Multi-refractor imaging with stacked refraction convolution section. Geophysical Prospecting, 53, 335-348.
Fulton, T. K., and Darr, K. M., 1984, Offset panel. Geophysics49, 1140-1152.
Jones, L.E.A. and Drummond, B.J., 2001, Effect of smoothing radius on refraction statics corrections in hard rock terrains. 15th ASEG Conference and Exhibition, Brisbane (Extended abstract).
Kvasnička, M. and Červený, V., 1996, Analytical expressions for Fresnel volumes and interface Fresnel zones of seismic body waves. Part 2: Transmitted and converted waves. Head waves: Studia Geophysica et Geodaetica, 40, 381-397.
Palmer, D., 1980, The generalized reciprocal method of seismic refraction interpretation. Society of Exploration Geophysicists, 104p.
Palmer, D., 1986, Refraction seismics: the lateral resolution of structure and seismic velocity. Geophysical Press.
Palmer, D., 2001a, Imaging refractors with the convolution section: Geophysics, 66, 1582-1589.
Palmer, D., 2001b, Resolving refractor ambiguities with amplitudes: Geophysics, 66, 1590-1593.
Palmer, D., 2008. Is it time to re-engineer geotechnical seismic refraction methods? First Break26(8), 69-77.
Palmer D. 2009a. Maximising the lateral resolution of nearsurface seismic refraction methods: Exploration Geophysics40, 85–90; Butsuri-Tansa62, 85–90; Mulli-Tamsa12, 85–90.
Palmer, D., 2009b, Integrating short and long wavelength time and amplitude statics: First Break27(6) 57-65.
Sheriff, R. E., and Geldart, L. P., 1995, Exploration Seismology, 2nd edn., Cambridge University Press.

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Article Type: Research Article

Keyword(s): RCS; refraction; seismic; sub-weathering.

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